Colorado took the doubles point by way of Jensen and Abbie Probert at No. 3 (8-3), then Esposito and Camila Bellasi at No. 1 (8-6). The Buffs, who faced No. 4 Nebraska just five days ago in regular-season competition, earned a rematch with the Huskers at Noon tomorrow.

No. 8 Missouri and No. 9 Kansas also faced off in the morning, with the Tigers prevailing, 4-1. MU earned the doubles point with No. 3 Danielle Day/Sofia Ayala and No. 1 Edina Horvath/Katerina Morozova posting a pair of 8-2 matches. Jessica Giuggioli and Kaitlyn Ritchie added an 8-6 win in the second position.

In singles, Day came up with a 6-2, 6-1 win in straight sets, followed by Ritchie’s match over Kuni Dorn at No. 4 (6-4, 6-4). Mallory Weber sealed the victory at No. 3 with a 7-6, 6-4 victory over Yuliana Svistun to send the Tigers to the quarterfinals with their first postseason win since 2005. MU will see top-seeded Baylor at 9 a.m.

Sixth-seeded Oklahoma State then took a 4-1 win over No. 11 Iowa State to face No. 3 Texas A&M on Friday. Iryna Khatsko and Alise Buslaieva opened with an 8-1 doubles victory at No. 2 over Maria Macedo and Marie Christine Chartier. Top duo Nataliya Shatkovskaya and JoAnne Karaitiana tallied an 8-2 match win against Erin Karonis and Kara Hickey.

In singles, No. 5 Oleksandra Belova began with a three-set win (6-4, 1-6, 6-1) over Liza Wischer. No. 4 Maryna Tkachenko outlasted Chartier (6-2, 6-1), and No. 6 Buslaieva closed the day with a 6-3, 3-6, 6-1 win over Alyssa Palen. The Cowgirls move on to the quarterfinals to face third-seeded Texas A&M at 6 p.m.

No. 7 Texas Tech and No. 10 were the final two teams to finish, as the Red Raiders prevailed, 4-3. Rebounding after falling behind in all three doubles matches, TTU earned a win at No. 1 from Samantha van der Drift and Kelsy Garland over Tara Eckel and Marie-Pier Huet, 8-6. No. 3 pairing Simone Templeton and Natalie Leitch put up another 8-6 victory, over Peta Maree Lancaster and Maria Kalashnikova.

In a close-fought battle, OU and Tech fought through six singles matches. No. 5 Stefanie Peana started off with a 6-2, 6-1 straight-set win against Lancaster, and Leitch defeated Kristina Radan at No. 4 (6-2, 6-4). The Sooners bounced back with wins from No. 6 Eckel (6-2, 6-2 against Kyla Coleman) and Ana-Maria Constantinescu over van der Drift, 6-1, 6-2 in the top spot. Kalashnikova added a 6-4, 5-7, 6-0 victory to advance past Garland and tie the match. In the final singles showdown, No. 3 Templeton closed the day with a 7-6, 7-6 defeat of Huet. Texas Tech now faces No. 2 Texas at 3 p.m.

Men’s and women’s quarterfinal action kicks off at 9 a.m. on Friday at Headington Tennis Center. All-session passes are still remain for $15 for adults and $10 for youth, students and seniors, while single-session tickets are $5 for adults and $4 for youth, students and seniors. For continued coverage of the Big 12 Tennis Championships, visit Big12sports.com.